Question: What is the name o an historical country that starts with the letter r.
Paraphrase: What is the title o an authentic nation that begins with the letter r.
SPARQL (Wikidata): SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q3024240 . ?sbj rdfs:label ?sbj_label . FILTER(STRSTARTS(lcase(?sbj_label), 'r')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
Answer: Roman Empire, Roman Empire, Roman Republic, Roman Republic, Ryukyu Kingdom, Ryukyu Kingdom, Russian Soviet Federative Socialist Republic, Russian Soviet Federative Socialist Republic, Republic of Venice, Republic of Venice, Russian Republic, Russian Republic, Republic of Texas, Republic of Texas, Riograndense Republic, Riograndense Republic, Roman Kingdom, Roman Kingdom, Republic of Ragusa, Republic of Ragusa, Republic of German-Austria, Republic of German-Austria, Republic of Formosa, Republic of Formosa, Republic of Tarnobrzeg, Republic of Tarnobrzeg, Republic of Mahabad, Republic of Mahabad, Republic of Mississippi, Republic of Mississippi, Roman Republic, Roman Republic, Republic of Genova, Republic of Genova, Rewa State, Rewa State, Republic of Florence, Republic of Florence, Republic of Ararat, Republic of Ararat, Russian Empire, Russian Empire, Republic of the Rif, Republic of the Rif, Republic of Negros, Republic of Negros, Republic of Zamboanga, Republic of Zamboanga, Republic of Maryland, Republic of Maryland